342 MISC. PUBLICATION 243, U.S. DEPT. OF AGRICULTURE 
lets subspheric, about 2 mm long, very turgid on one side and some- 
what convex on the other; fertile lemma rather indistinctly cross- 
wrinkled (fig. 311). 
Savannas, rocky banks, and open woods, Mexico and the West 
Indies to Brazil. 
This was described by Grisebach * as Setaria onurus and by 
Hitchcock and Chase* as Chaetochloa onurus, but a reconsideration of 
the type leads to the conclusion that the original Panicum onurus 
Willd. in Trin.,** from Montevideo, collected by Sello, is a different 
species, later described as Setaria caespitosa Hack. and Arech., not 
known from North America. 
Cusa: Las Mangas, Ekman 13069. Bahia Honda, Wilson 9411, 
Triscornia, Tracy 9090. Campo Florido, Léon 4145. Madruga. 
Léon 3456. San Miguel de los Bafios, Léon 8911. Yumuri, Rugel 
880. Guanabacoa, Wright 3474. Soledad, Hitchcock 23327. Sancti 
Spiritus, Léon 828. Baragua, Mitchcock 23349; Walker in 1925. 
Zaza del Sur, Sergius 2712. Manati, Léon 
5684. Woodfred, Shafer 3020. Guara, Hitch- 
cock 23392. Without locality, Wright 3887. 
Jamaica: Two-Mile-Wood Pen, Harris 
12065. New Forest, Hitchcock 9891 (Amer. 
Gr. Nat. Herb: 608). " Wuititz; Horris 11650 
Yardley Chase, Harris 9673. 
Haiti: Cap-a-Faux, Hkman H 10848. 
Tortuga Island, Hkman H 4136. 
WINDWARD Isuanps: Barbados, Dash 603. 
TrinipaD: Port-of-Spain, Hitchcock 9991, 
10000 (Amer. Gr. Nat. Herb. 609). St. 
Joseph, Hitchcock 10180. St. Anns, Broad- 
way 7368. 
8. Setaria verticillata (L.) Beauv., Ess. Agrost. 
Rly ey Ie. BuR BRISTLEGRASS, 
/ Panicum verticillatum L., Sp. Pl. ed. 2.1 
a rire Be 2 82. 1762. Europe. 
ce OT Giclee aa Izvophorus verticillatus Nash, Bull. Torrey 
Bot. Club 22: 422. 1895. 
Chaetochloa verticillata Scribn., U. S. Dept. Agr., Div. Agrost. Bull. 
4: 39. 1897. 
Annual, often much branched at base and geniculate-spreading; 
blades flat, rather thin, usually 10 to 20 cm long and 5 to 10 mm wide; 
scabrous on both surfaces, often more or less pilose; panicles erect 
but not stiff, subcylindric, more or less lobate or interrupted, especially 
toward base, mostly 5 to 15 cm long, 7 to 15 mm wide; bristles 1 to 
3 times as long as the spikelets, somewhat flexuous, retrorsely scabrous 
to base; spikelets about 2 mm long, oblong-elliptic, not very turgid 
on the convex side; fertile lemma finely cross-wrinkled (fig. 312). 
Fields and waste places, temperate and warm regions of both 
hemispheres, introduced in America. Called in Cuba “ pega-pega’”’ 
and ‘‘amor seco.” 
Bermupa: Collins 161; Brown and Britton 116, 302; Harshberger in 
1905; Millspaugh 99, 127; Brown 676. 
86 F]. Brit. W. Ind. 555. 1864. 
87 Contrib. U. S. Natl. Herb. 18: 349. 1917. First published by Scribn. and Merrill, U. S. Dept. Agr., 
Div. Agrost. Bull. 21: 27. 1900 
88 Mém. Acad. St. Pétersb. VI. Sci. Nat. 1: 226. 1834. 
